A sphere with radius 2.0 mm carries +1.0 ?C of charge distributed uniformly throughout its volume. What is the potential difference, VB - VA, between point B,

which is 4.0 m from the center of the sphere, and point A, which is 9.0 m from the center of the sphere? (k = 1/4??0 = 8.99 × 109 N ? m2/C2)
A) 1200 V
B) -1200 V
C) 140 V
D) -0.45 V


A

Physics & Space Science

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